less serious less expensive less hardware demmanding photoshop...

Well im kinda interested in doing some photo shop type of stuff just for the fun of it. The thing is I dont want to spend more than 50 bucks on the software though I might go up to a hundred. Also im only running an ibook I plan on maxing out the ram for xmas. So im the power and resolution needed to run an app like photoshop. Anything like this out there?

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